Topics

MSG-1 and MET7 thoughts

Luca Bertagnolio <lucaberta@...>
 

Hi,

I was just wondering, since the direct downlink of the data from MSG-
1 will not be possible, what would prevent Eumetsat from positioning
MSG-1 close by 0 degrees, let's say 0.5E, and run the operational
service from that position?

Doing that would enable a longer transition from the analog MET7
broadcasts, which are received by a very large number of stations,
keeping MET7 at 0 degrees, while MET8 would already be operational
with almost the same coverage.

Of course I am only talking about technical matters, not taking into
consideration agreements for orbital slots and things like this.

Does anyone know how the transition from analog WEFAX to the new
format is handled? I would not be surprised to see quite a few
protests when MET7 will start to drift towards 10W...

Bye, Luca

Douglas Deans <douglas@...>
 

----- Original Message -----
From: "Luca Bertagnolio" <lucaberta@...>
To: <MSG-1@...>
Sent: Wednesday, August 27, 2003 11:03 AM
Subject: [MSG-1] MSG-1 and MET7 thoughts


Hi,

I was just wondering, since the direct downlink of the data from MSG-
1 will not be possible, what would prevent Eumetsat from positioning
MSG-1 close by 0 degrees, let's say 0.5E, and run the operational
service from that position?

Doing that would enable a longer transition from the analog MET7
broadcasts, which are received by a very large number of stations,
keeping MET7 at 0 degrees, while MET8 would already be operational
with almost the same coverage.

Of course I am only talking about technical matters, not taking into
consideration agreements for orbital slots and things like this.

Does anyone know how the transition from analog WEFAX to the new
format is handled? I would not be surprised to see quite a few
protests when MET7 will start to drift towards 10W...

Bye, Luca
Hello Luca

Meteosat 7 is not going to be moved. It will remain at 0� until at least
the end of 2005. MSG-1 will be moved to approx 3-4�W, subject to final
Eumetsat Council approval. This is possible because there will be no
direct dissemination from MSG-1. and hence no co-interference.
At that new position images corrected to 0� (as they are now) will show less
interpolation than at present. Seems a good compromise.

Regards
Douglas.

Ulrich G. Kliegis <Ulrich.Kliegis@...>
 

On 27 Aug 2003 at 11:17, Douglas Deans wrote:
Meteosat 7 is not going to be moved. It will remain at 0° until at least
the end of 2005. MSG-1 will be moved to approx 3-4°W, subject to final
Eumetsat Council approval. This is possible because there will be no
direct dissemination from MSG-1. and hence no co-interference.
At that new position images corrected to 0° (as they are now) will show less
interpolation than at present. Seems a good compromise.

Hmmm, I guess, Luca read the same information that I did yesterday: See
the bottom (as of Aug.27,2003) of this page:
http://www.rig.org.uk/msg.htm

Regards,

U.

Luca Bertagnolio <lucaberta@...>
 

Ulrich,

true, but that page is also outdated because of the Power Amp problem
on MSG-1.

Good to know that what started as a personal thought will in the end
be Eumetsat's policy, with MET7 kept at 0 and MET8 close to 0 with
images rectified at 0, as mentioned by Douglas.

Bye, Luca

--- In MSG-1@..., "Ulrich G. Kliegis"
<Ulrich.Kliegis@n...> wrote:
Hmmm, I guess, Luca read the same information that I did yesterday:
See
the bottom (as of Aug.27,2003) of this page:
http://www.rig.org.uk/msg.htm

Douglas Deans <douglas@...>
 

----- Original Message -----
From: "Ulrich G. Kliegis" <Ulrich.Kliegis@...>
To: <MSG-1@...>
Sent: Wednesday, August 27, 2003 12:57 PM
Subject: Re: [MSG-1] MSG-1 and MET7 thoughts


On 27 Aug 2003 at 11:17, Douglas Deans wrote:
Meteosat 7 is not going to be moved. It will remain at 0� until at least
the end of 2005. MSG-1 will be moved to approx 3-4�W, subject to final
Eumetsat Council approval. This is possible because there will be no
direct dissemination from MSG-1. and hence no co-interference.
At that new position images corrected to 0� (as they are now) will show
less
interpolation than at present. Seems a good compromise.

Hmmm, I guess, Luca read the same information that I did yesterday: See
the bottom (as of Aug.27,2003) of this page:
http://www.rig.org.uk/msg.htm

Regards,

U.


Unfortunately a lot of the info. in the RIG web pages is not kept up to date
and of course the MSG-1 situation has been very fluid. Indeed my
understanding from Eumetsat was that the Council meeting to which I referred
was to be held in June....still no confirmation. Probably no urgency for
the move until nearer the time that MSG-1 becomes the operational satellite
ie January 2004.
What I did not make clear in my last mail was that basically Meteosat 7 with
old PDUS/Wefax and Meteosat 8 (HRIT/LRIT) will overlap for at least 2 years
(maybe more) to allow everyone time to prepare for changeover.

Regards
Douglas.